Vacuum brake booster
US4481865A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1980 |
| Grant date | Nov 13, 1984 |
| Priority date | — |
| Expiry date | Apr 21, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/565
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A brake booster comprising a housing which is divided into a vacuum chamber and a working chamber by a movable wall. A tube is disposed in the housing coaxial of the longitudinal axis thereof having its ends fastened to the end walls of the housing. The tube is provided with longitudinal slots in the vacuum chamber which are open remote from the movable wall. Parts of the movable wall project through the slots and are fastened to a valve housing extending into the tube, the valve housing containing a control valve which controls the pressure in the working chamber. This arrangement allows a short overall length of the booster and enables easy assembly thereof with respect to known prior art brake boosters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.